Separating device for thrashing machines



APPLICATION FILED APR, 12. I920.

Patented Jan. 10, 1922.

2 SHEETS-SHEET I.

mvsN-roR A. W. WHITE.

SEPARATING DEVICE FOR THRASHI NG MACHINES APPLICATION FILED APR- 12,1920.

Patented Jan. 10, 1922.

2 SHEETS-SHEET 2.

)NVENTOR A.w.wm1' s Ari- 's.

ARTHUR WILLIAM WHITE, OF LONDON, ONTARIO, CANADA.

SEPARATING DEVICE FOR THRASHING DEACHINES.

Application filedApril 12, 1 920.

further object is to construct a devicein which the straw will be movedat the required speed to completely clear the same from the thrashingcylinder, such speed increasing until the straw is discharged from thedevice. A still further object is to provide means for agitating thestraw and aceentuating the movement thereof while passing over thedevice.

My invention consists of independent separating decks carrying suitabletoothed racks, such decks being preferably inclined to the horizontal,hangers pivotally supporting the lower ends of such decks, lateral stubshafts freely mounted in suitable bearings in the independent decks,rocker arm's secured to said stub shafts at their upper ends,independent lateral shafts freely mounted in suitable bearings, therocker arms of the outer decks suitably secured to one of the lateralshafts and the rocker arms of the intermediate deck suitably secured tothe other lateral shaft, depending arms secured to the opposite ends ofthe respective lateral shafts, a lateral driving shaft, crank wheelsmounted on the driving shaft, a suitable power pulley on the drivingshaft, connecting rods, each connected at one end to the correspondingcrank wheel on the driving shaft and their other ends connected to thedepending arms on the respective lateral shafts, and agitators extendinglongitudinally through said independent decks and suitably secured tothe aforesaid stub shafts, all as hereinafter more particularlydescribed and illustrated in the accompanying drawings in which Fig. 1represents a side elevation of a device constructed according to myinvention.

Fig. 2 is an end view thereof.

Fig. 3 is a cross section and Specification of Letters Patent.

Patented J an. it), 1922.

Serial No. 373,336.

Fig. 4 is a sectional detail of a portion of one of the decks showingthe agitators.

Like characters of reference indicate corresponding parts inthedifierent views.

1 are the outer decks and 2 is the intermediate deck. 3 arevlongitudinal racks suitably mounted onthe upper side of the decks 1 and2, and 4 are inclined lateral slats, suitably separated, and extendingbetween the side members of the decks 1 and 2. 5 are brackets carrying.a cross shaft '6, and .7

are hanger links pivotally connected at their lower ends to the innerends of thedecks 1 and 2 and at their upper ends to the crossshaft 6. v

8 are stub shafts freely mounted in suit- .able bearings 9 on the'innersides of the side members of the decks 1 and 2, 10 and 11 are lateralshafts rotatably mounted in, bearings 12 and 13. 14 are rocker armsSuitably secured at their upper ends to the stub shafts 8 of the outerdecks 1 and at their lower ends to the shaft 10. 15 is a rocker armsuitably secured at its upper end to the stub shaft 8 of theintermediate deck 2 and at its lower end to the lateral shaft 11. 16 isa depending arm secured tothe lateral shaft 10, and 17 is a dependingarm secured to the opposite end of the shaft 11. 18 is a suitablymounteddriving shaft extending laterally of the device and carrying thepulley 19 by means of which the device is driven. 20 and 21 are crankwheels suitably mounted on the ends of the driving shaft 18, and 22 and23 are connecting rods respectively connected at one end to the crankheels 20 and21 and at the other end to the rocker arms 16 and 17. g

'24 are double agitators of sector shape adapted to extent throughlongitudinal slots 25 in the decks 1 and 2 on each side of the racks 3.These agitators 24 are suitably secured to the stub shafts 8 of thedecks l and 2. v

, The operation of the device is as follows. Upon the thrashed strawbeing deposited on the decks 1 and 2, the straw is immediately moved upsuch decks under action of racks 3 and the alternate reciprocatingmotion of the decks 1 and 2, the grain being separated from the straw asit moves up these decks and such movement being accentuated by themovement of the agitators 24 until the straw is discharged from theouter ends of the decks 1 and 2 at a speed preferably double itsstarting speed. This is achieved by the operation of the decks 1 and 2'and the agitators 24.

The alternate reciprocatory motion of the outer decks 1 and theintermediate deck 2 rocker arm's 141 and the attached decks 1,

the depending arms 17 through the medium of the connecting rod 23 andcrank wheel 21 turns the shaft 11 in the reverse direction, consequentlylowering the rocker arm 15 andthe attached deck 2.

W hen the pulley 19 is rotated the connecting rods 22 and 23oscillate-the arms 16 and 17 thus giving an oscillating movement to therocker arms 1 1 and 15 connected to the decks 1 and 2. Such oscillatorymove-- ment of'these rocker arms imparts a peculiar movement to thedecks givingthem a longitudinal movement in one direction and acorresponding lowering of the outer ends of the decks, and onreciprocating a longitudinal movement in therother direction and anupward movement of the outer ends of-the decks;

It will be seen on reference to Fig. 1 of the drawing that the rockerarm 15 of the intermediate'deck 2 is so arranged respectively to therocker. arms 14 on the outer decks 1, that the action of suchintermediate deck 2 will be alternate to the action to the outer decks1.

The agitators 24 being connected to the rotatable stub shafts 8 theywill be oscillated by the action of such rocker'arms 14 and 15simultaneously with the lowering and raising of the outer ends of thedecks 1 and When the outer ends of the decks 1 and 2 are lowered, theagitators 24 will be swung into the position shown in dotted lines inFig. 4, and when the outer ends of the decks is raised they will beswung into the position shown in full lines. This action of theagitators serves to accentuatethe speed of the straw on the decks 1 and2 as well as separate any grain remaining in the straw by agitating thesame.

The agitators 2d extending through the decks 1 and 2, could be used'witha single deck or with decks which do not operate alter- 'nately asdescribed above.

The essential features of these agitators are that they extend throughsuch deck and are operated in unison with the reciprocatory movement ofthe same. 1

From the above description it will be seen that I have devised a simpleand effective separating device for thrashing machines and one that willseparate the grain from the straw more effectively than the presentseparating devices at present in use.

What I claim as my invention is.

1. In a separating device for thrashing 'machines, independentlongitudinally disposed separating decks, longitudinal racks on theupper sides of such decks, suitably separated inclined lateral slatsextending across said decks, lateral stub shafts freely mounted in saiddecks, independent ateral shafts freely mounted below said decks, rockerarms, each secured at one end to the stub shafts in the outer decks andat the other end to the corresponding lateral shaft, a rocker armsuitably secured at one end to the, stub shaft of the intermediate deckand the other end to the other lateral shaft, arms on the opposite endsof the independent lateral shafts and means for oscillating said arms.

2. In a separatingdevice for thrashing machines, independentlongitudinally disposed separating decks, hangers pivotally supportingthe inner ends of said decks, longitudinal racks on the upper sideofsuch decks, suitably separated inclined lateral slats extending acrosssaid decks, lateral stub shafts freely mounted in said decks,independent lateral shafts freely mounted below said decks, rocker arms,each secured at one end to the stub shafts in the outer decks and at theother end to the corresponding lateral shaft, a rocker armsuitablysecured at one end to the stub shaft of the intermediate deck and at theother end to the other lateral shaft, arms on the opposite ends of theindependent lateral shaft a: d means for oscillating said arms.

3. In a separating device for thrashing machines, independentlongitudinally disposed separatlng decks, longitudinal racks on theupper'side of such decks, suitably separated inclined lateral slatsextending across said decks, lateral stub shafts freely mounted in saiddecks, i dependent lateral shafts freely mounted below said decks,rockerarms, each secured one end to the stub shafts in the-outer decksand at the other end to the corresponding lateral shaft, a rocker armsuitably secured at one end to the stub shaft of the intermediate deckand at the other end to the other lateral shaft. arms on the oppositeends of the independent lateral shafts, means for oscillating I saidarms and agitators suitably secured to the stub shafts and extendingthrough longitudinal slots in the decks.

4. In a separating device for thrashing machines, independentlongitudinally disposed separatingdecks, longitudinal racks on the upperside of such decks, suitably separated inclined' lateral slats extendingacross said decks, lateral stub shafts freely mounted in said decks,independent lateral shafts freely mounted below said decks, -low saiddecks, rocker arms, each secured rocker arms, each secured at one end tothe stub shafts in the outer decks and at the other end to thecorresponding lateral shaft, a rocker arm suitably secured at one end tothe stub shaft of the intermediate deck and at the other end to theother lateral shaft, arms on the opposite ends of the independentlateral shaft, means for oscillating said! arms, and sectorshapedagitators suitably secured to the stub shafts and extendingthrough longitudinal slots'in the decks.

In a separating device for thrashing machines, independentlongitudinally disposed separating decks, hangers pivotally supportingthe inner ends of said decks,

longitudinal racks on the upper side of such decks, suitably separatedinclined lateral slats extending across said decks, lateral stub shaftsfreely mounted in said decks, independent lateral shafts freely mountedbelow said decks, rocker arms, each secured at one end to the stubshafts in the outer decks and at the other end to the correspondinglateral shaft, a rocker arm suitably'secured at one end to the stubshaft of the intermediate deck and at the other end to the other lateralshaft, arms on the opposite ends of the independent lateral shaft, meansfor oscillating said arms, and sector shaped agita tors suitably securedto the stub shafts and extending through longitudinal slots in thedecks.

'6. In a separating device for thrashing machines, independentlongitudinally disposed separating decks, longitudinal racks on theupper sides of such decks, suitably separated inclined lateral slatsextending across said decks, lateral stub shafts freely mounted in saiddecks, independent lateral shafts freely mounted below said decks,rocker arms, each secured at one end to the stub shafts in the outerdecks and at the other end to the corresponding lateral shaft, a rockerarm suitably secured at one end to the stub shaft of the intermediatedeck and at the other end to the other lateral shaft,

arms on the opposite ends of the independent lateral shafts, and asuitably driven lateral driving shaft rotatably mounted below the decks,crank wheels on said driving shaft and connecting rods each connected atone end to the corresponding crank wheel on the driving shaft and at theother end to the corresponding arm on the independent lateral shafts.

7. In a separating device for thrashing machines, independentlongitudinally disposed separating decks, hangers pivotally supportingthe inner ends of said decks, 1ongitudinal racks on the upper side ofsuch decks, suitably separated inclined later'al slats extending acrosssaid decks, lateral stub shafts freely mounted in said decks,independent lateral shafts freely mounted beat one end to the stubshafts in the outer decks and at the other end to the correspondinglateral shaft, a rocker arm suitably secured at one end to the stubshaft of the intermediate deck and at the other end to the other lateralshaft, arms on the opposite ends of the independent lateral shaft, and asuitably driven lateral driving shaft rotatably mounted below the,decks, crank wheels on said driving shaft and connecting rods eachconnected at one end-to the corresponding crank wheel on thedrivingshaft and at the other end to the corresponding arm onthe independentlateral shafts.

8. In a separating device for thrashing machines, independentlongitudinally disposed separating decks, longitudinal racks on theupper side of such decks, suitably separated inclined lateral slatsextending across said decks, lateral stub shafts freely mounted in saiddecks, independent lateral shafts freely mounted below said decks,rocker arms, each secured at one end to the stub shafts in the outerdecks and at the other end to the corresponding lateral shaft, a rockerarm suitably secured at one end to the stub shaft of the intermediatedeck and at the other end to the other lateral shaft, arms on theopposite ends of the independent lateral shafts, a suitably drivenlateral driving shaft rotatably mounted below the decks, crank wheels onsaid driving shaft and connecting rods each connected at one end to thecorresponding crank wheel on the driving shaft and at the other end tothe corresponding arm on the independent lateral shafts, and agitatorssuitably secured to the stub shafts and extending through longitudinalslots in the decks.

9. In a separating device for thrashing machines, independentlongitudinally disposed separatingdecks, longitudinal racks on the upperside of such decks, suitably separated inclined lateral slats extendingacross said decks, lateral stub shafts freely mounted in said decks,independent lateral shafts freely mounted below said decks, rocker arms,each secured at one end of the stub shafts in the outer decks and at theother end to the corresponding lateral shaft, a rocker arm suitablysecured at one end to the stubshaft of the intermediate deck and at theother end to the other lateral shaft, arms on the opposite ends of theindependent lateral shaft, and a suitably driven lateral driving shaftrotatably mounted below the decks, crank wheels on said driving shaftand connecting rods each connected at one end to the corresponding crankwheel on the driving shaft and at the other end to the corresponding armon the independent lateral shafts, and sector shaped agitators suitablysecured to the stub shafts and extend ing through longitudinal slots inthe decks.

deck and at the other end to the other lateral shaft, arms on theopposite ends of the independent lateral shaft, a suitably drivenlateral driving shaft rotatably mounted below the decks, crank Wheels onsaid driving shaft, connecting rods, each connected at one end to thecorresponding crank Wheel on the driving shaft and at the other end tothe corresponding arm on the independent lateral shafts, and sectorshaped agitators suitably secured to the stub shafts and extendingthrough longitudinal slots in the decks.

ARTHUR WILLIAM WHITE.

